How to add decimals Line up the decimal points. Estimate. Write 0’s as needed. Compare sum with estimate. 1.23 4.797 1.23 4.797 1 2 3 Add. Write the decimal in the sum. 4 Estimate 6 Sum 6.027 0 1 5 6 + 7 2 1 0 1 . 6 1.23 4.797 0 +
Problem Solving Steps What information do you need? What is the problem asking you to find out? Is the answer going to be larger or smaller? What strategies will you use? What operations will you use? How many steps are there and in what order must you do them? How will you solve the problem? Did you check your answer? Does your answer make sense? Analysis Representation Resolution
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